Typewriting machines – Sheet or web – For feeding web record-medium
Patent
1997-04-08
1998-07-14
Eickholt, Eugene H.
Typewriting machines
Sheet or web
For feeding web record-medium
400582, 400583, 400709, 226 24, 226 75, 226 45, 355309, 355316, 347264, 36446903, B41J 1126
Patent
active
057793786
ABSTRACT:
A printer includes a tractor unit for feeding continuous form paper, encoders driven in synchronization with a tractor belt, and detecting sensors for detecting rotation of the encoders to generate feed pulses at a standard interval. The printer further includes a paper top sensor which detects a leading edge of the continuous form paper to generate a paper top signal and is arranged to control the feeding of the paper based on a feed pulse generated after the paper top signal. In order to compensate for a delay of the paper top signal, the printer controller is arranged to determine if there is a delay in the paper top signal by comparing the time interval between the paper top signal and the feed pulse with a threshold value. The printer is so arranged that the threshold value is stored in a non-volatile memory and can be set after assembly of the printer. A positioning error of the paper top sensor with respect to the tractor unit due to imprecise mounting of the paper top sensor can be compensated by adjusting the threshold value.
REFERENCES:
patent: 4485949 (1984-12-01), Gebhart et al.
patent: 4839814 (1989-06-01), Steidel
patent: 4949104 (1990-08-01), Negoro et al.
patent: 4998835 (1991-03-01), Negishi et al.
patent: 5026183 (1991-06-01), Oshima et al.
patent: 5027999 (1991-07-01), Ferguson
patent: 5071273 (1991-12-01), Kato
patent: 5088843 (1992-02-01), Hori
patent: 5222820 (1993-06-01), Kamei et al.
patent: 5386772 (1995-02-01), Tolle et al.
patent: 5480244 (1996-01-01), Senda
patent: 5493318 (1996-02-01), Negoro et al.
patent: 5516220 (1996-05-01), Ishikawa et al.
patent: 5520383 (1996-05-01), Amagai et al.
patent: 5532811 (1996-07-01), Nishikawa et al.
patent: 5544965 (1996-08-01), Kamoda et al.
patent: 5564845 (1996-10-01), Yamaguchi et al.
patent: 5649274 (1997-07-01), Honda et al.
patent: 5676479 (1997-10-01), Yamaguchi
Asahi Kogaku Kogyo Kabushiki Kaisha
Eickholt Eugene H.
LandOfFree
Continuous form printer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous form printer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous form printer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1875631